US2023272177A1PendingUtilityA1

Construction with thermal insulation properties

Assignee: 3M INNOVATIVE PROPERTIES COMPANYPriority: Jul 31, 2020Filed: Jul 22, 2021Published: Aug 31, 2023
Est. expiryJul 31, 2040(~14 yrs left)· nominal 20-yr term from priority
C08J 7/0427C08J 9/0061C09D 183/04C08J 2383/04B32B 3/08B32B 3/16B32B 3/02B32B 25/045B32B 5/18B32B 25/20B32B 2266/0207B32B 2307/304B32B 2307/3065B32B 2457/10B32B 2605/00H01M 10/658H01M 50/209H01M 50/293H01M 2200/00Y02E60/10
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Claims

Abstract

The present disclosure relates to a multilayer construction comprising a polymeric foam layer; and at least one spacer layer comprising a plurality of spacer elements, wherein each spacer element comprises a protruding portion and two opposite terminal portions, and wherein at least one terminal portion of each spacer element is fully embedded into the polymeric foam layer.

Claims

exact text as granted — not AI-modified
1 . A multilayer construction comprising:
 a) a polymeric foam layer; and   b) at least one spacer layer comprising a plurality of spacer elements, wherein each spacer element comprises a protruding portion and two opposite terminal portions, and wherein at least one terminal portion of each spacer element is fully embedded into the polymeric foam layer.   
     
     
         2 . A multilayer construction according to  claim 1 , wherein the polymeric foam layer comprises a material having a weight loss after 3 min at 600° C. of no greater than 70%, when measured according to the thermal stability test method described in the experimental section. 
     
     
         3 . A multilayer construction according to  claim 1 , wherein the polymeric foam layer comprises a material selected from the group consisting of elastomeric materials, thermoplastic materials, thermoplastic elastomer materials, thermoplastic non-elastomeric materials, thermoset materials, and any combinations or mixtures thereof. 
     
     
         4 . A multilayer construction according to  claim 1 , wherein the polymeric foam layer comprises a material selected from the group consisting of silicone elastomers, in particular silicone rubbers, more in particular organopolysiloxane polymers. 
     
     
         5 . A multilayer construction according to  claim 1 , wherein the polymeric foam layer reaches a compression value of at least 60% when using a compression force of no greater than 700 kPa, when measured according to the compression test method described in the experimental section. 
     
     
         6 . A multilayer construction according to  claim 1 , wherein the protruding portion of each spacer element is fully embedded into the polymeric foam layer. 
     
     
         7 . A multilayer construction according to  claim 1 , wherein the spacer elements have an overall shape selected from the group consisting of circular, semi-circular, oval, square, triangular, rectangular, diamond, polygonal, linear stripes, non-linear stripes, curved stripes, C-shape stripes, S-shape stripes, and any combinations thereof. 
     
     
         8 . A multilayer construction according to  claim 1 , wherein the plurality of spacer elements forms a patterned structure on the spacer layer. 
     
     
         9 . A multilayer construction according to  claim 1 , wherein the spacer layer further comprises a base layer, wherein the plurality of spacer elements extends out of the base layer. 
     
     
         10 . A multilayer construction according to  claim 1 , wherein the spacer layer comprises a material selected from the group consisting of elastomeric materials, thermoplastic materials, thermoplastic elastomer materials, thermoplastic non-elastomeric materials, thermoset materials, and any combinations or mixtures thereof. 
     
     
         11 . A multilayer construction according to  claim 1 , wherein the spacer layer comprises a material selected from the group consisting of silicone elastomers, in particular silicone rubbers, more in particular organopolysiloxane polymers. 
     
     
         12 . A multilayer construction according to  claim 1 , wherein the spacer layer is obtainable by a technique selected from the group consisting of (micro)replication techniques, embossing techniques, and any combinations thereof. 
     
     
         13 . A process for manufacturing a multilayer construction according to any of  claims 1  to  12 , wherein the process comprises the steps of:
 providing a polymeric foam layer as described in  claim 1 ; 
 providing at least one spacer layer as described in  claim 1 ; and 
 applying the at least one spacer layer onto the polymeric foam layer. 
 
     
     
         14 . (canceled) 
     
     
         15 . (canceled)

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